Purlin-supporting bracket



ci.. M 1924. wmi- T. J. QALLAHAN PURLIN SUPPORT ING BRACKET Filed Nov. e. 1921 esmas-"sheen 1 Armen/Ey @amm w24. Y mmz T. J. CALLAHAN y PURLIN SUPPORTING BRACKET Filed Nov. 8. 1921 2 ShelLs-Sheell 2 INI/ENTOR/ M A "ORNE Y Patented et, ld, 1924.

THOMAS J.' CALLAHAN, 0F DAYTON, OHIO.

PURLINeSUPORTING' BRACKET.

Application filed November 8, 1921.

To all whom t may concern.'

Be it known that I, THOMAS J. OnLLAr-IAN,

a citizen of the United States, residing in the city of Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Purlin-Supporting Brackets, of which the following is a specification.

One of the principal objects of my inven tion is to provide a simple, strong and durable bracket for firmly supporting a purlin or other structural member. It is more rigid than the lordinary bracket, it is easy to manufacture, and is adapted to take a firm' grip upon the standard to which it is applied.

While it is particularly adapted as a purlin brace for greenhouses, it may be equally as well employed as a support or brace in other structures.

Other important, and incidental objects will be brought out in the following specification, and particularly set forth in the subjoined claim.

In the accompanying drawings, Figure 1 is a cross sectional view taken through a greenhouse, showing my improved bracket applied to a supporting post for the ridge pole. Figure 2 is a front view of my supporting bracket when adapted for attachment to said post. Figure 3 is an end view thereof. Figure 4 is a cross sectional view taken through a greenhouse having a double roof-support, showing how my purlin supporting brackets are applied to the cross member that is secured to the supporting posts. Figure 5 is a front view of one of said posts and the cross member, showing how one of my brackets is secured to the latter. And Figure 6 is an end view thereof.

Throughout the specification and jdrawings, similar reference characters denote corresponding parts.

While the subject of the invention has a multiplicity of uses, it will first be described in its form for attachment to a single center post or standard o-f a greenhouse, for the purpose of supporting the tubular braces or supports of the purlins. Referring to Fig ure 1 for an outline description of this greenhouse structure to which my invention applies, the numeral 1 designates a ridge pole from which rafters 2, 2 incline downwardly to two horizontal supporting beams 3, 3 that are mounted upon side posts Il, 4 respective ly. Forming one of the supports for the Serial No. 513,659.

ridge pole 1 is a center post or standard 5.

Applied to the middle portion of the post 5 is a U-bolt 6 whose free ends, which are threaded, project through holes in a metallic cross member 7. Nuts 8, 8 are screwed on the outer threaded ends of the U-bolt 6 to press the cross member 7 tightly against the post 5. (See Figures 2 and 3.) While the means just described are preferred for `firmly holding the cross member 7 on the post 5,- any other suitable means may be employed for this purpose if desired.

Secured to each end: of the cross member 7 by one end of the U-bolt 6 and one of the nuts 8, is a bracket casting constructed as follows. Referring to Figures 2 and 3, this casting has an outer end 9 which is cylin drical, a central annular flanged portion 10, and an inner end'11 that is flattened on two sides. The threaded ends of the U-bolt 6 are adapted to be thrust through respective holes provided in the lower parts of the flattened ends 11 of the two bracket castings, after which the nuts 8 are applied to the threaded ends of the U-bolt to tightly press the flattened ends of the bracket castings against the cross member 7, and the latter in turn against the post 5.

Fitted on the cylindrical end 9 of each bracket casting is the lower end of an elon* gated tube 12 which is adapted to bear against the annular flange 10 on the casting. After each tube 12 is so fitted on the cylindrical end 9 of its respective bracket casting, a bolt 13 is passed through holes in each of those members to receive on its outer end a nut 111 to tightly connect them together. (See Figures 2 and 3.) When so connected to its respective bracket casting, each tube 12 inclines upwardly to support or brace a purlin 15 in the greenhouse structure. (See Figure 1.) It will thus be seen that my improved brackets are adapted to be secured in a compact and rigid manner to a center post of a greenhouse or other building to firmly support the purlins thereof.

The employment of my improved brackets in a double roof-support will now be described. In Figure 4; two supporting posts 5, 5 are shown, one on each side of the ridge pole 1. Connected between the middle portions of the posts 5, 5 by means of U-bolts 16, 16 respectively, is an angle member 17. Secured in an upwardly inclined position, to each outer end of the angle member 17 by means of a bolt 18 and nut 19, is the flatvlins in the same manner they Were supported by the tubes .12,- 12 in Figure `1.* It is thus seen how my improved brackets may be applied to the two posts 5, 5 in they structure shown in Figure 4, to rmly and rigidlyy support "the purlins thereof. In this -structurethe brackets are so connected to the'angle member 17, and the latter is so secured lto the posts 5, 5, that all of lthese 4 velements togetherl form a strOllg, Compact vets kso lend themselves .to it as to make a strong,` irm and rigid roof support.

and ri id support'for the roof' ofthe buildingq. imilarly inthe single post construction -shoWn inFgure 1, myimproved brack- Ido not desire to be'limited to the details of constructionk and arrangement herein shown and described; and any changes or modifications may be made therein Within the scope of the subjoined claim.

' Havingdescribed my invention, I claim: In a device of the type described, the combination With a standard, of a U-bolt applied thereto, threaded ends on said U-bolt, a cross member through Which the threaded ends of the U-bolt project, a pair of bracket pieces, a flattenedend on each bracket piece, through Which the threaded ends of the U-bolt project, nuts applied to the threaded ends of the U-bolt outside the flattened ends of the bracket pieces, a cylindrical end on each bracket piece, an annular flange on each bracket piece between its cylindrical` end and its flattened end, and a tubeitted on the cylindrical end of each bracket piece, adapted to bear against the annular flange thereon.

In testimony whereof I have hereunto set my hand this 4th day-of November, 1921.

THOMAS J. CALLAHAN. Witness HOWARD S. SMITH. 

